Machine for winding balls.



PATBNTED MAY 15, 1906.

M. J. SELZER. MACHINE FOR WINDING BALLS.

APPLIOATION FILED MAR.2, 1904.

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Y 1v mh NTTED sTATEs PATENT oEErcE.

MITCHELL J. SELZER, OF AKRON, OHIO, ASSIGNOR TO HARRY C.

CLIPPINGER AND JACOB DETTLING, OF AKRON,

OHIO.

To all whom it may concern:

Be it knownthat I, MITCHELL J SELZER, a citizen of the United States, residing at Akron, in the county of Summit and State of Ohio, have invented a certain new and useful Improvement in Machines for Winding Balls, of which the following is a'complete specification.

My invention relates to a machine for winding a layer of thread or cord about a core.

The objects of my invention are to produce a machine which will seize and hold firmly a core and wrap about it a continuous cord or thread until a layer thereof of a desired thickness is obtained, and to do this with great rapidity and by the use of comparatively simple mechanism.

A further object is to insure a machine inwhich the winding or layer of cord about the core will be of even density throughout, avoiding any tendency to parallelism in the placement of the cord, to the end that the windings of the progressively-enlarging ball may overly each other in every possible direction. I To the accomplishment of the aforesaid objects my invention consists in certain peculiar and novel mechanism, one form of which is hereinafter described, reference being had to the accompanying drawing, which represents a side elevation of my machine with certain parts in section to better illustrate the construction thereof.

In the drawing, 1 and 2 are upright brackets bolted to a bed 3 and provided at their upper ends with journal-bearings in which is mounted a rotatable shaft 4. Mounted on this shaft at any convenient place are tight and loose pulleys 5 and 6, over which is passed a belt from any source of powerby which the operation of the hereinafter-described mechanism is obtained, and a beltshifter of any ordinary pattern may be employed to shift this belt.

Near the vertical centers of the brackets 1 and 2 are long bearings 7, in which are mountved stub-shafts 8, each bearing at their outer ends collars 9, held adjustably by set-screws 10. Surrounding the shafts 8y are yoke handlevers 11, having their lower ends pivoted on pins 12, passing through webson the brackets 1 and 2. The central portion of these levers 11 are transversely rounded to form partial loops about the shafts 8 and are outwardly Specification of Letters Patent. Applicationled March 2, 1904. Serial No. 196,159.

` plates 16.

Patented May 15, 1906.

bent from their main longitudinal lines, and these bent portions are 'intended to bear against the collars 9 when their outer free ends are thrown outwardly.

Mounted on the shafts 8 outside of the brackets 1 and 2 are spur-gears 13, which mesh into wide-faced gears 14 on the shaft 4, and thus the shafts 8 receive motion from the shaft 4.

On the inner ends of the shafts 8 are eccentric heads 15, which revolve in suitablyshaped openings in plates 16 placed thereon, and these plates 16 are held from slipping off by rings 17, bolted to the plates 16 and covering the joints between the heads 15 and Between the heads 15 and the brackets 1 and 2 are coiled springs 18, the tendency of which is to force inward the shafts 8 unless overcome by power exerted on the hand-levers 11.

In order to prevent the plates 16 from accidentally revolving with the eccentrics 15, there isbolted to the lower ends of the plates 16 arms 19, the lower ends of which are arranged to abut against and lie parallel with brackets 20, bolted to the base 3. These arms 19 and brackets 20 are united by bolts 21, which pass through slotted openings in the brackets and permit movement of the arms 19 in unison with the plates 16, actuated by the eccentric heads 15.

Midway between the brackets 1 and 2 and bolted to the base 3 is an upright bracket 22, having two arms terminating at their upper ends in journal-bearings 23, in which are tightly held by set-screws 24 the inner ends of sleeves 25. In these sleeves 25 is mounted a rotatable shaft 26, on the central portion of which between the journals 23 is mounted a spur-gear 27, which meshes into a spur-pinion 28 on the shaft 4, and thus motion is communicated to the shaft'26. On the outer ends of the shaft 26 are eccentric heads 29, similar to the heads 15, inclosed by plates 30, similar to the plates 16, held in position by rings 31 in like manner as has been described with reference to the plates 17. Bolted to the lower ends of the plates 30 are arms 32, which lie against and parallel with arms 33, bolted to the enlarged heads 34, integral with sleeves 25. The free ends of the arms 32 and 33 are united by bolts 35, which pass through slots in the arms 32, and thus permit movement of the arms 32 in unison with the plates 30, operated by the movement of the eccentric heads 29. Mounted revolubly on the sleeves 25, between the journals 23 and the integral heads 34 of the sleeves, are spur-pinions 36, into which mesh spur-gears 37 on the shaft 4, and thus these pinions are revolved at a high speed whenever the shaft 4 is rotated.

Integral with the pinions 36 and diametrically opposite to one another are arms 38, to which-are attached by any preferred means the cord carrying and guiding mechanism. This mechanism consists of light metallic frames 39, the outer portions of which are made to resemble the three sides of a hollow square, and thence a free arm or needle 40 extends parallel with the arms 38 to about the axial line of the shafts 8. Within the square portions of these frames 39 are mounted spools 41 of cord or thread of a preferred size. On the free arms or needles 40 are tension devices, consisting of convex springs 42, held with their ends pressing on the needles 40 by hand-nuts 43. Near the inner ends of the springs 42 are slots 44, cut from one of the sides of the Springs to about their centers, and near the ends of the needles 40 are eyes 45. The cords or threads are carried from the spools 41 over the springs 42, down through the slots 44, out under the ends of the springs 42, along the needles 40, and thence down through the eyes 45 to the core on which the winding is to be done.

The operation of this device is as follows: The mechanism being free from motion, the hand-levers 11 are drawn outward, thereby separating the plates 16 and 30, and cores are inserted between them at as near their exact center as possible, and when the pressure is released from the levers 1 1 these plates firmly grasp the cores, due to the pressure of the springs 18. Sufhcient cord is then drawn through the eyes 45 of one or both needles 40 to make a wrap or two about the cores. Then the belt is shifted to the tight pulley on the shaft 4, and motion is communicated to the entire mechanism, which causes the frames 39 and needles 40 to revolve with great speed about the core and at the same time winding thereon the cord or thread from the spools 41. While this winding is taking place, the core is rotated between the plates 16 and 30, due to the motion caused by the revolution of the eccentric heads 15 and 29. part similar circulatory motions differing in phase to the plates 16 and 30 and to cause them to approximately alternate in the direction of the movement of one plate with re spect to the direction of the other plate-by this I mean to have one plate at the top, for

In order to iminstance, of its throw, while the other is at some other phase of its motionthe eccentrics 1,5 and 29, mounted, respectively, on the shafts 8 and 26, are set so that their largest or widest portions are not horizontally opposite to one another, but are, as shown in the machine to the right in the drawing, where the plate 16 is at the lowest portion of its movement, while the plate 30 is at its highest. When the layer of cord has reached a desired thickness, the hand-levers 1.1 are moved `slightly outwardly and the core, covered with its covering, is allowed to drop free from the plates 16 and 30. The loose end of the cord on the core is secured, and the ball is ready for its cover.

It will be apparent from the foregoing description that the motion given to the plates 16 and 30 will be a circulatory one similar to that attained by the eccentric-strap of an ordinary eccentric on an engine-shaft, and the core while being wound will be continually rolled, so as to receive the cord promiscuously and evenly in every possible direction.

What I claim, and desire to secure by Letters Patent, is-

1. The combination in a machine of the class described of two oppositely-disposed plates, eccentric heads, within said plates, revoluble shafts to support said heads, means to cause said plates to hold an object between them and means to wrap about said object a layer of cord or thread.

2. The combination in a machine of the class described, of two oppositely-disposed plates, eccentric heads within said plates, rotatable shafts to support said heads, a spring on one of said shafts to cause said plates to hold an object between them, hand-levers arranged in connection With said shafts to move one of them, in a direction opposite to that caused by said spring, and means to wind on said object a layer of cord or thread.

3. The combination in a machine of the class designated, of two oppositely-disposed plates, eccentric heads within said plates, rotatable shafts to support said heads, means to rotate said shafts, means to cause said plates to hold an object between them, means to hold said plates from revolving with said heads yet permitting a circular movement thereof, 'and means to wrap a layer of cord or thread about said object.

In testimony that I claim the above I hereunto set my hand in the presence of two subscribing witnesses.

MITCHELL J. SELZER. In presence of C. E. HUMPHREY, A. E. KLING.

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